Printing machine



(No Modl.)

2 Sheets-Shet 1.

J. G. NORTHRUP. PRINTING MACHINE. I 7 I Patented Sept. 23 1884 (No Model.) 2 Sheets-Sheen; 2.

J. G. NORTHRUP. i

f PRINTING MACHINE.

Patented Sept. 23,1884.

Unrren seam Parana @rricn.

JOEL GRANDISON NORTI-IEUP, OF MAROELLUS, NE\V YORK.

PRINTING-MACHINE.

JQJIICJ'IPICATION formingpart of Letters Patent No. 305,169, dated September 28, 1884.

Application tiled June 16, 1883.

To all whom it may concern.-

Be it known that I, J OEL G. NORTHRUP, a citizen of the United States, and a resident of Marcellus, county of Onondaga, and State of New York, have invented certain new and useful Improvements in Printing-Machines, of which the following is/a specification.

The object of the invention is to provide a printing-machine which shall embody means for employing flat forms or printing-surfaces, continuous rotary web feeding and severing mechanism, and an impression cylinder or cylinders, so that the acknowledged perfection of work of fiat printing-surfaces may be utilized in connection with the acknowledged rapidity of operation of rotary web guiding, conducting, and severing mechanisms.

The invention consists in certain features of construction, hereinafter described, and specifically set forth in the claims.

Referring to the drawings, Figure 1 is a longitudinal vertical section of the frame and the type-beds, with the web supporting, guiding, and severing mechanisms shown in end elevation. Fig. 2 is a complete elevation of the side of the machine opposite that shown in Fig. 1. Fig. 3 is a plan, and Fig. 4 an end elevation, of one of the type-beds.

Like letters indicate like parts in all the figures.

The frame-work of the press comprises an open rectangular frame, having suitable standaids for the bearings of the rolls journaled therein, and said frame may be provided with any suitable means for its support upon a floor or foundation. WVithin each of the side rails of the frame are channels or ,ways E E The ways E E are horizontal and located near the bottom and top of the frame, respectively, while the ways E E are curved or inclined, and unite-the ends of the ways E E.

It will be noticed that the mechanism at either end of the machine is a duplicate of that at the other, so that a particular description of one end will, in a measure, suffice for both. The arrows indicate the direction of movement of the parts which at each end of the machine is opposite tothe direction of the movement of the similar parts at the other end. The middle (lengthwise) of the machine may (No model.)

'of the inclined or curved vertical tracks E E".

The shaftB carries outside of the frame apinion, (not shown,) which meshes with the gear G of the impression-cylinder G, (see dotted lines G, Fig. 2,) and the shafts O and D carry outside of the frame meshing gears, so that, motion being imparted to the shaft B by beltpulley B, Fig. 2, the three shafts B, O, and

D and the impression-cylinder are rotated. The belt B serves to communicate motion to the duplicate mechanism at the opposite end of the machine. The shafts B C D, the impression-cylinders G, and one of the severing rolls I have upon their ends, at the side of the machine opposite that shown in Fig. 2, a system of intermeshing gears, b, c, (l, G, and

- i, as shown by dotted lines in said figure.

Referring to Figs. 8 and 4, which are respectively a plan and an end elevation of one .of the type-beds employed in this machine, it

will be seen that the bed proper, F, has a rack, F, at each side thereof, extending the whole length of the bed, and projecting lugs F at each of its corners. These racks are openthat is to say, are adapted to be operated by a gear or pinion working either above or below thebed. The lugs F are adapted to ride in the ways E E E ll.

Referring to the right-hand portion of Fig. 1, it will be seen that the devices thus far described will operate as followsz-A series of beds, F, will be successively carried in the horizontal ways over the shafts D, O, and B, as the gears D B rotate in the direction indicated by the arrows, and when the forward end of each of the beds reaches the inner end of the track E the rear end of said bed will be carried down by the gears B, through the inclined way E, into the lowerhorizontal way, 100

E, and will be moved in the opposite direction "E until the lugs F in the ways are brought into the upper way, E, and it is then carried forward in the same manner as just described with reference to the preceding bed. In this manner a series of forms on the beds may be 7 continuously operated or carried, so that, in

connection with suitable impression mechan: ism, successive impressions may be taken from the forms. impression-cylinder, (which, as aforesaid, is positively geared to the form-operating shaft B by means of the gear G,) around which the paper is conducted from the web-shaft H by guide-rollers H, arranged to deliver the web first about one of the impression-cylinders G at one end of the machine, where one side of the web is printed by a succession of forms, and thence around or about the impressioncylinder at the opposite end of the machine, where the opposite side of the web is printed by another succession of forms, the relative arrangement and location of the cylinders and forms being such that the matter printed upon each side of the web will accurately register. From the second'cylinder the web is conducted over one of the web-severing rolls I, and between it and a drawing-roll, 1, running in contact therewith, and in this instance positively gearing therewith. As the web passes between the knives I of the severing-rolls it is separated into sheets, which may be delivered by any ordinary fly or conducted into any suitable folding mechanism.

J J J 2 J 3 represent the inking-rolls, mounted in any suitable manner over the frame of the machine, at such'a distance that as the beds pass toward theimpression-cylinders the types,

forms, or printing-surfaces thereon are sup.-

plied with ink from a fountain, J*, the roll of which is intermittently rotated by a pawl and ratchet, J operated through the means of a cam, J on the end of the shaft D, which cam at each revolution of the shaft raises the lever K, pivoted at K to the frame of the machine, and pivotally connected to a rock-arm, K carrying the transfer-rolls J 2 J A link, K mounted on the rock-arm K serves to operate the pawl of theink-fountain roller. This mechanism is duplicated at each end of the machine, so that the duplicate sets of forms are suitably supplied with ink.

It will be noticed that the gears B and D have complete, accurate, and positive control of each of the beds while it is co-operating with the impression-cyli nder,'and in the usual In this instance G represents the arrangement of printing -.surfaces, type, or forms upon the bed there are vacant spaces betweenthe advancing and following ends of the bed and said forms where there is no pressure, so that before the impression is begun said gears have positive control of the forms. The teeth of the gears B D and of the rack are so proportioned that the pressure falls upon the body portion of the gear between the teeth, and no undue pressure is brought to bear upon the said teeth, and the result is a solid foundation and a positive and smooth movement of the bed, whereby perfect impressions are secured. I

I am aware of my Patent N 0. 2,793, granted September 30,1842, and of subsequent patents embodying the principle of operating beds somewhat in the manner herein shown, and I do not, therefore, broadly claim fiat type beds operated by racks and pinions. v

Having described my invention and its operation, what I claim as new is- 1 l. The combination of a series of typebeds, as F, having racks and lugs, the frame having ways and transverseshafts carrying pinions meshing with said racks, and a rotary impression-cylinder positively geared to one of the bed-operatingshafts,substantially as specified.

2. A printing-press comprising a frame having arranged at each end thereof a series of flat type-beds having racks and lugs, transverse shafts having pinions meshing with said racks at the upper and thelower sides thereof, a'rotary impression-cylinder arranged at each end of the machine to operate with the corre sponding series of beds, and means, substantially as shown and described, for inking each series of forms, and for conducting a Web from one of said impression-cylinders to the other, substantially as specified.

3. A printing-press provided at each of its ends with a series of flat type-beds having racks and lugs, transverse shafts having pinions for operating the beds, asdeseribed, a rotary impression-cylinder and independent ink supplying and distributing devices arranged to operate with each independent series of beds, a single web shaft, a series of guiderollers arranged to conduct the web from one cylinder to the other, and web-severing devices, substantially as shown and described.

' 4. The combination of the frame A, having the ways E E E E the shafts B D, the gears B D, the intermediate shaft, 0, the type-beds F, having the racks F and lugs F the rotary impressionicylinder G, the web-guides H, the

drawingroller I, and the severing-rolls I, the whole constructed and arranged substantially as described.

JOEL GRANDISON NORTHRUP. Witnesses:

, JAMES DELAMERE MATHER,

JAMES HENRY MATHER. 

